"With the delayed replay, you can catch mechanics and movements, see swings and pitches," Mattingly said. "You can see a lot from the standpoint that you can see it twice."
On Sunday, Mattingly served the final game of his two-game suspension for arguing with umpires on Thursday in Pittsburgh, with bench coach Trey Hillman serving as interim manager.
Among the bright spots for Mattingly on Saturday night was offensive production from the first-base position, which has been a glaring weakness most of the season. James Loney homered Saturday for the second time in three games.
On the trip, Loney is hitting .308 with four RBIs and five runs scored, while Juan Rivera is batting only .154 on the trip, but has a homer and five RBIs.
"The first-base position has been pretty good off this trip," Mattingly said. "We're getting production out of first base, right on time."